Company lists · Data verified August 2026
Top 25 Accounting outsourcing companies based in Toronto, Canada
There are 121 accounting outsourcing companies headquartered in Toronto, Canada (RevenueBase, August 2026). RevenueBase tracks 488 professional contacts across them, including 154 with verified work emails and 24 with mobile numbers. Toronto is the largest hub.
This list covers accounting outsourcing companies headquartered in Toronto, Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.
The 25 largest accounting outsourcing companies based in Toronto, Canada
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 | 8 | |
| 2 | 25 | |
| 3 | 10 | |
| 4 | 10 | |
| 5 | 4 | |
| 6 | 11 | |
| 7 | 3 | |
| 8 | 5 | |
| 9 | 4 | |
| 10 | 5 | |
| 11 | Greysuits Advisors INC | 8 |
| 12 | 3 | |
| 13 | 2 | |
| 14 | 5 | |
| 15 | Ledgerworks | 2 |
| 16 | Prudent Prosource | 1 |
| 17 | 1 | |
| 18 | 2 | |
| 19 | 2 | |
| 20 | 1 | |
| 21 | 2 | |
| 22 | 2 | |
| 23 | 1 | |
| 24 | 2 | |
| 25 | 2 |
Showing 25 of 121 accounting outsourcing companies based in Toronto, Canada
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Accounting outsourcing companies based in Toronto, Canada at a glance
As of Aug 28, 2026Companies by employee count
Accounting outsourcing companies by metro in Canada
| Metro | Companies |
|---|---|
| Accounting outsourcing companies in Toronto | 121 |
| Accounting outsourcing companies in Calgary | 89 |
| Accounting outsourcing companies in Vancouver | 46 |
| Accounting outsourcing companies in Edmonton | 41 |
| Accounting outsourcing companies in Mississauga | 36 |
| Accounting outsourcing companies in Ottawa | 36 |
| Accounting outsourcing companies in Montreal | 36 |
| Accounting outsourcing companies in Surrey | 22 |
How this list was built
- Source
- The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
- Inclusion
- Companies whose own business descriptions match “accounting outsourcing companies”, with match quality audited by blind human judging, and headquartered in Toronto, Canada.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
- Refresh
- Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.
Frequently asked
How many accounting outsourcing companies are there based in Toronto, Canada?
There are 121 accounting outsourcing companies headquartered in Toronto, Canada as of August 2026 (RevenueBase).
What is the largest company on this list?
SNPS, headquartered in Toronto, tops this list with the largest team on record.
Which city has the most accounting outsourcing companies?
Toronto leads with 121 headquartered companies, followed by Calgary (89) and Vancouver (46).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 154 verified decision-maker contacts tracked across these 121 companies.
How current is this list?
The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 121 accounting outsourcing companies based in Toronto, Canada. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.
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